Product Introduction

Model Interpretation

• 45C = Family code for Reliance Electric AutoMax/AutoMate/Shark XL series I/O modules.

• 766 = 8‑channel isolated relay output module; “7” denotes high‑current isolated relay, “66” relates to output configuration.

• (‑) = Common separator in ordering; functionally identical to 45C766.

• Alternate 45CRLY / HE45C‑RLY = Horner Electric equivalent part number.

Technical Parameters

• Outputs: 8 independent, electrically isolated normally open (N.O.) relay channels.

• Rated voltage: 250 VAC, 125/250 VDC.

• Rated current: 10 A per channel resistive (AC), 5 A per channel (DC).

• Min switching load: 100 mA @ 5 VDC.

• Isolation: 2,500 Vrms between channels and logic; channel‑to‑channel isolation.

• Fuses: Individual replaceable fuses per channel (AGC type, 5 A / 250 V).

• Indicators: Power LED, 8 channel ON LEDs, 8 fuse‑fault LEDs on front panel.

• Operating temperature: ‑20 °C to +60 °C.

• Protection class: IP20 (cabinet use).

• Mounting: 45C‑series DIN rail.

• Terminals: 18‑position screw terminal strip (two rows of nine).

• Certification: CE, UL listed for industrial control.

• Mechanical life: >100,000 operations per relay.

Interface and Communication Configuration

• Backplane connection: Plug‑in to Shark XL / AutoMax backplane for power and logic I/O.

• Field wiring: Front‑panel 18‑position screw terminals for eight relay common and normally open contacts.

• Communication: Backplane bus only; no external serial/network ports.

• Compatibility: Shark XL, AutoMax, AutoMate PLC systems; 45C‑series I/O rail (up to 8 modules per rail).

Core Functions

• Converts controller logic signals into 8‑channel isolated relay switching for high‑current loads.

• Provides galvanic isolation between control system and field devices to suppress noise and protect circuitry.

• Individual channel fuses offer overcurrent protection per output.

• LED status enables real‑time diagnostics for power, channel state, and fuse faults.

• Hot‑swap capable (with system power removed) for easy replacement.

Application Scenarios

• Industrial automation: Driving contactors, motor starters, solenoid valves, heaters, and large indicator lamps.

• Process control: 120/230 VAC or 24/48/110 VDC high‑current switching on production lines, machine tools, packaging, and material handling equipment.

• Panel‑building: Isolated, multi‑channel output for OEM panels requiring robust load driving and safety isolation.

Operation and Maintenance Instructions

• Install on a 45C‑series DIN rail and ensure full backplane engagement before powering on.

• Torque all field wiring terminals to manufacturer specifications; verify insulation integrity.

• During operation, monitor front‑panel LEDs: power ON, channel LEDs follow command state, fuse LEDs OFF for normal operation.

• If a fuse LED illuminates, power down the system, replace the corresponding AGC 5 A / 250 V fuse, and inspect wiring for shorts.

• Keep the module surface clean and free of dust to maintain proper heat dissipation.

• Disconnect system power before removal, inspection, or replacement.

• Do not disassemble internal components; replace the entire module if a permanent fault occurs.

• The unit is discontinued by Reliance Electric; use surplus or refurbished units for replacement.